VEX Dictionary / sample_photon
sample_photon
Emits a photon from a light, writing its first hit position, direction, and scale, and returns 0 on a miss.
group: samplingsamplinglightpbr
Available in displace, fog, light, shadow, surface
Usage
int sample_photon(light lp, vector &pos, vector &dir, float &scale, float time)Examples
No worked examples yet.
Signatures (from vcc -X)
int sample_photon(light, vector &, vector &, float &, float)displace, fog, light, shadow, surface